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Kipish [7]
3 years ago
9

Which is the fundamentals law of energy?​

Physics
2 answers:
Bingel [31]3 years ago
7 0

" <em>Energy is never created or destroyed.</em> "

All the rest is commentary.

navik [9.2K]3 years ago
6 0

Answer: energy can be transferred but cannot be destroyed

Explanation:

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An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) whi
mel-nik [20]

Answer:

Explanation:

All the displacement will be converted into vector, considering east as x axis and north as y axis.

5.3 km north

D = 5.3 j

8.3 km at 50 degree north of east

D₁= 8.3 cos 50 i + 8.3 sin 50 j.

= 5.33 i + 6.36 j

Let D₂ be the displacement which when added to D₁ gives the required displacement D

D₁ + D₂ = D

5.33 i + 6.36 j + D₂ = 5.3 j

D₂ = 5.3 j - 5.33i - 6.36j

= - 5.33i - 1.06 j

magnitude of D₂

D₂²= 5.33² + 1.06²

D₂ = 5.43 km

Angle θ

Tanθ = 1.06 / 5.33

= 0.1988

θ =11.25 ° south of due west.

4 0
3 years ago
What is the name of the specification that indicates the frequencies that are dedicated for data transmission over cable lines?
mihalych1998 [28]
The answer to this question is the term
DOCSIS. A DOCSIS or Data Over Cable Service Interface Specification is a telecommunication standard or interface where in an internet was being provided by the use of cables. The advantage of using DOCSIS is that the speed of the internet is faster using this kind of interface.
4 0
3 years ago
A 42-kg crate rests on a horizontal floor, and a 52-kg person is standing on the crate. (a) determine the magnitude of the norma
Lemur [1.5K]
Hope this helps you.

6 0
3 years ago
Describe how different types of motion are represented by distance-time graphs and velocity-time graphs.
eduard

Answer:

non-accelerated movement

velocity versus time  a horizontal straight line.

distance versus time  gives a horizontal straight line.

accelerated motion

graph of velocity versus time s an inclined line and the slope

graph of distance versus time is a parabola of the form

Explanation:

In kinematics there are two types of steely and non-accelerated movements

In a  the velocity of the body is constant therefore a speed hook against time gives a horizontal straight line.

A graph of distance versus time is a straight line whose slope is the velocity of the body

          x = v t

In an accelerated motion the velocity changes linearly with time, so a graph of velocity versus time is an inclined line and the slope is the value of the acceleration of the body

         v = v₀ + a t

A graph of distance versus time is a parabola of the form

         x =v₀ t + ½ a t²

4 0
2 years ago
A mass of gas under constant Pressure occupies a volume of 0.5 M3 At a temperature of 20゚C using the formula for Cubic expansion
MAVERICK [17]

To answer this question, we must use the equation for the volumetric expansion of gases at constant pressure. This equation is given by:

V=V_{0}(1 + \alpha(T_{2}-T_{1}))

We know:

V_{0} is the initial volume = 0.5 m ^ 3

ΔT is the temperature change = 45 ° -20 ° = 25 °

\alpha is the coefficient of gas expansion and is equal to 1/273

Then the final volume of the gas is:

V=0.5*(1+\frac{1}{273}*25)

V=0.546m^ 3

7 0
3 years ago
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